A kit of parts for making a protective, disassemblable, durable, mechanically strong, rigid and cushioning carton-less yarn packing unit for packing and tightly holding in position at least one row of yarn bobbins, the one row of yarn bobbins to be packed comprising a bottom layer of yarn bobbins and at least one top layer (1b, 1c) of yarn bobbins, each layer of yarn bobbins comprising an equal number of yarn bobbins and each yarn bobbin comprising a bobbin tube and a yarn wrap wound on the bobbin tube with the bobbin tube ends (2a, 2b) protruding out of the yarn wrap, the packing unit comprising: a base support plate and a top support plate, each made of a durable, mechanically strong, rigid material, the one row of yarn bobbins being packable between the support plates (5, 6), whereby the ends of the bobbin tubes of the top layer (1b, 1c) of yarn bobbins protruding down from the respective yarn wraps can rest against the ends of the bobbin tubes of the bottom layer of yarn bobbins protruding up from the respective yarn wraps, wherein each of the support plates has strap engaging means at the ends and sides thereof; durable, cushioning support layers locatable between the base support plate and the bottom surface of the bottom bobbin layer and between the top support plate and the top surface of the top bobbin layer; a durable, cushioning separator layer locatable between the bottom bobbin layer and the top bobbin layer (1b, 1c), the durable, cushioning support layers and the durable, cushioning separator layer each having holes for the bobbin tubes to pass there through in order to seat, centre and balance the bobbin tubes in position against the base support plate and the top support plate; tightening straps engageable in the strap engaging means at the ends and sides of the base support plate and top support plate to tightly hold in position the base support plate and the top support plate with the row of yarn bobbins located and centred therebetween in use, characterised in that each of the support plates (5, 6) comprises a row of bobbin tube locating and centring circular recesses along the centre of the inner side thereof, the row of yarn bobbins being locatable at the bottom against the base support plate with the ends of the bobbin tubes protruding down from the respective yarn wraps of the bottom layer of yarn bobbins locatable and centrable in the tube locating and centring recesses in the base support plate and the ends of the bobbin tubes protruding up from the respective yarn wraps of the top layer of yarn bobbins locatable and centrable in the tube locating and centring recesses in the top support plate. a base support plate and a top support plate, each made of a durable, mechanically strong, rigid material, the one row of yarn bobbins being packable between the support plates (5, 6), whereby the ends of the bobbin tubes of the top layer (1b, 1c) of yarn bobbins protruding down from the respective yarn wraps can rest against the ends of the bobbin tubes of the bottom layer of yarn bobbins protruding up from the respective yarn wraps, wherein each of the support plates has strap engaging means at the ends and sides thereof; durable, cushioning support layers locatable between the base support plate and the bottom surface of the bottom bobbin layer and between the top support plate and the top surface of the top bobbin layer; a durable, cushioning separator layer locatable between the bottom bobbin layer and the top bobbin layer (1b, 1c), the durable, cushioning support layers and the durable, cushioning separator layer each having holes for the bobbin tubes to pass there through in order to seat, centre and balance the bobbin tubes in position against the base support plate and the top support plate; tightening straps engageable in the strap engaging means at the ends and sides of the base support plate and top support plate to tightly hold in position the base support plate and the top support plate with the row of yarn bobbins located and centred therebetween in use, characterised in that each of the support plates (5, 6) comprises a row of bobbin tube locating and centring circular recesses along the centre of the inner side thereof, the row of yarn bobbins being locatable at the bottom against the base support plate with the ends of the bobbin tubes protruding down from the respective yarn wraps of the bottom layer of yarn bobbins locatable and centrable in the tube locating and centring recesses in the base support plate and the ends of the bobbin tubes protruding up from the respective yarn wraps of the top layer of yarn bobbins locatable and centrable in the tube locating and centring recesses in the top support plate.