COSMOS 1 Pair Neoprene Keen Kneening Pad Flooring Kneepad with Fastening Strap for Home Gardener (BLACK) Package include 1 pair knee pad; One size. Knee pad provide protection from moisture, rough terrain, light weight but durable Main material is quality neoprene and anti-shock foam. Pad Size (L x W) : 9" x 5-1/2" Adjustable double velcro strap fit knee circumference from 13-1/2 inch to 19-1/2 inch.