Hydrofarm Macore Co HGPMR1000 Plant Stake Labels, 4 x 5/8", Red These labels are made from .19-.20 virgin styrene for a durable, stiff product that is easily inserted and written on Keep your shelf supply in a dark, cool location to extend their life These come in a sturdy shelf box (recyclable) of 1000 per box with 10 banded bundles of 100 each Macore blanks have a long reputation for dependable performance