SUCOHANS200 Pack Cloning Collars Inserts Premium Grade Foam, Cloner Collars, Better Than Neoprene for Hydroponics Plant Germination in DIY Cloner & Clone Machines, Fits 2 Inch Net Cups (Black)

Was going to use them for my hydroponic farmstand but really can’t get past this srrong chemical odor. Definitely do not trust them around my veggie seedlings. Hopefully can return

Still working great weeks after use. No break down or tearing. Very easy to reuse and clean.