SPECS: Dimensions size 2: 1.1" x 1.7" x 0.4"/29 mm x 44 mm x 10 mm Dimensions size 3: 1.5" x 2.3" 0.4"/38 mm x 58 mm x 11 mm Dimensions size 4: 2" x 3.2" x 0.6"/52 mm x 81 mm x 15 mm Weight: 0.2 oz/4 g (size 2), 0.3 oz/7 g (size 3), 0.6 oz/17 g (size 4) Weight rating: 10 lbs/4.5 kg (size 2), 25 lbs/11 kg (size 3), 75 lbs/34 kg (size 4) DESIGN & DETAILS: Lightweight aluminum construction on body Slide-to-lock style stainless steel gate