The UFC Muay Thai Heavy Bag is designed for Muay Thai training. This heavy bag sports a thick black vinyl shell with woven backing to withstand hard punches and kicks. Durable chains are secured with a high-strength riveted strap assembly that's made to withstand heavy impacts. This Muay Thai heavy bag is officially licensed by the UFC. Thick black vinyl with woven backing. Fiber fill for shock absorption. Chain secured with heavy-duty riveted straps. Dimensions: 14.5W x 14.5D x 48H in.