A system for attachment to a webbing or a strap, comprising: an attachment portion comprising a base body having front and back walls (22, 23) with a cavity between the front and back walls (22, 23), at least one transverse bar connected to the base body and separated from the base body by a gap, and two locking hooks (201, 202) extending into the cavity in a direction opposite the at least one transverse bar, an operating portion having two side legs (31, 32), and top sections (33, 34) connected to the side legs (31,32) and having a gap between the top sections (33,34), such that squeezing the side legs together narrows the gap, wherein each of the top sections has a locking hook extending therefrom, wherein the operating portion is connectable to the attachment portion by pressing the side legs (31, 32) together and inserting the locking hooks (201, 202) of the operating portion into the cavity of the attachment portion, and then releasing the side legs (31, 32) so that the locking hooks (201, 202) of the attachment portion engage the locking hooks of the operating portion, and wherein the operating portion is detachable from the attachment portion by squeezing the side legs together until the locking hooks on the operating portion clear the locking hooks (201, 202) on the attachment portion, and moving the operating portion away from the attachment portion, characterized in that two prongs (28,29) extend from the attachment portion opposite the at least one transverse bar, the two prongs (28, 29) being disposed in the gap between the top sections (33, 34) of the operating portion when the operating portion is attached to the attachment portion. an attachment portion comprising a base body having front and back walls (22, 23) with a cavity between the front and back walls (22, 23), at least one transverse bar connected to the base body and separated from the base body by a gap, and two locking hooks (201, 202) extending into the cavity in a direction opposite the at least one transverse bar, an operating portion having two side legs (31, 32), and top sections (33, 34) connected to the side legs (31,32) and having a gap between the top sections (33,34), such that squeezing the side legs together narrows the gap, wherein each of the top sections has a locking hook extending therefrom, wherein the operating portion is connectable to the attachment portion by pressing the side legs (31, 32) together and inserting the locking hooks (201, 202) of the operating portion into the cavity of the attachment portion, and then releasing the side legs (31, 32) so that the locking hooks (201, 202) of the attachment portion engage the locking hooks of the operating portion, and wherein the operating portion is detachable from the attachment portion by squeezing the side legs together until the locking hooks on the operating portion clear the locking hooks (201, 202) on the attachment portion, and moving the operating portion away from the attachment portion, characterized in that two prongs (28,29) extend from the attachment portion opposite the at least one transverse bar, the two prongs (28, 29) being disposed in the gap between the top sections (33, 34) of the operating portion when the operating portion is attached to the attachment portion.