Features 1、Made of nylon and metal, sturdy and durable. 2、Comes with a 30-inch chain, suitable for neck training exercises. 3、Fully adjustable, one size fits all. 4、The padded width of neoprene rubber enhances comfort. 5、Helps to strengthen neck muscles and improve balance. This fitness head and neck trainer, made of nylon and metal, is sturdy and durable. It comes with a 30-inch chain, suitable for neck training exercises. It is an ideal choice for strengthening neck muscles and improving balance. Features: Made of nylon and metal, sturdy and durable. Comes with a 30-inch chain, suitable for neck training exercises. Fully adjustable, one size fits all. The padded width of neoprene rubber enhances comfort. Helps to strengthen neck muscles and improve balance. Specifications: Material: Nylon + Metal D-ring Size: One size fits all Chain length: 78cm / 30in Color: Black Package size: 32*26*3cm / 12.6*10.2*1.2in Weight: 515g / 1.14lb Package list: 1 x Fitness Head and Neck Trainer Package List 1 x Fitness Head and Neck Trainer