STANDARD SIZE FOR EVERY GROWER
Actual diameter 1.89" fits inside 2 inch net cups/ net pots PERFECTLY to support plants as Neoprene root guards and Neoprene net pot lid in hydroponic systems and aeroponic cloners or DWC clone machines using Neoprene inserts 2 inch
CENTERED HOLE CUT
These cloning machine collars have reasonably small centered hole gives you NO-PINCH touch to hold tender cuttings securely without hurting them, so plants grow healthier and happier!
UNIQUE 6 SPOKE DESIGN
It can hold 5 extra small delicate cuttings in a single cloning collar so as to clone more cuttings in the same space at a time with less work (in suitable occasions)
NON TOXIC & STERILE
NO smells 100% new foam material is BPA free safer than other kind Neoprene materials. PH Neutral and hold no water preventing plant diseases, bad bacteria, algae or stem from rotting. Great for organic and hydroponic growers!