Material: Zinc alloy + aluminum alloy Dimension of 8 shaped carainer: 5 x 2.2 x 0.7cm Load bearing of 8 shaped carainer: 4.5kg (Max) Dimension of D shaped carabiner: 2.4 x 1 x 0.7cm Hole diameter: 0.5cm Load bearing of D shaped carabiner: 15kg (Max)