The No Stink, Anti-Bacterial Dog collar in this very bright, Max Reflective solid Green is made from recycled inner bicycle tubes. The relcaimed rubber is hand sewn onto the back of the fabric which then prevents bacteria from growing, the collar from becoming sticky and also stinky! Added features on the collar include a Latch-Lock metal buckle fastener, an ID Spot Loop Attach, a handy Pup Top Bottle Opener & a lead attachment. A matching lead in this range is also available. Collar available in two widths and three neck sizes. Note: The 5/8" Small collar only available with Plastic Fast Release Clip.