Material Made from eco-friendly PU GEL FOAM material, non-toxic, PVC and latex-free. The Yoga Knee Pad advanced closed cell foam will not absorb sweat or liquids. Size20 x 20 x 1.5 cm, ( 7.9 x 7.9 x 0.59 inch ) Non-slip Surface DesignWith non-slip textured surface, making you grip yoga mat or floor better to ensure excellent stability and balance during complicated yoga poses. Not Easy To DeformThickness knee support pad can provide superior performance of instant rebounds, making this pad durable for use. Relieve Pressure & Protect JointThe central sag design helping relieve pressure on the joints and muscles while performing different yoga poses to preventing your knees, elbows, wrist, hip, ankle or hand from injure. Perfect for Yoga, fitness, workout, plank, pilates.