The pair of dog knee pads can provide support and relieve pain during injury, and stop pets from licking leg wounds. Features: Relieve pain caused by injury or surgery. Provide support and stability during injury. Stop pets from licking leg wounds. Helps treat the loss of stability caused by arthritis. SBR material, black color, wear-resistant and dirt-proof. Specifications: Material: Cloth, SBR Color: Black Size: S, M, L, XL (optional) Item Size: S: 140 * 140 * 100mm / 5.51 * 5.51 * 3.94in M: 170 * 160 * 120mm / 6.69 * 6.3 * 4.72in L: 200 * 180 * 140mm / 7.87 * 7.09 * 5.51in XL: 230 * 200 * 160mm / 9.06 * 7.87 * 6.3in Package Weight: S: 37g / 1.31ounces M: 47g / 1.66ounces L: 61g / 2.15ounces XL: 65g / 2.29ounces Package Size: S: 150 * 100 * 10mm / 5.91 * 3.94 * 0.39in M: 190 * 100 * 15mm / 7.48 * 3.94 * 0.59in L: 220 * 110 * 20mm / 8.66 * 4.33 * 0.79in XL: 230 * 120 * 20mm / 9.06 * 4.72 * 0.79in Packing List: 2 * Dog Knee Pads