The Greenhouse Bolts and Rings 15-Pack features a cropped head design, made of aluminium and stainless steel with a tensile strength of 500 pounds per square inch. Each bolt and ring set is designed for use in garden structures and shade, adding a secure and durable option for greenhouse assembly. The set includes 15 pieces, each measuring 10 x 8 x 1 centimetres, providing ample supply for various gardening projects. The silver colour and bar clamp style make these bolts and rings both functional and visually appealing in any outdoor space.