1. Product material: 304 stainless steel
2. Surface treatment: mirror light
3. Use 2mm diameter to strengthen the spring
4. Thickened gear design
5. Net weight: 39mm: 111.6g, 44mm: 117.9g, 50mm129.1g, 55mm: 135.1g, 59mm: 141.5g
6. Specifications: Φ39mm length 20 x width 6 x height 2cm, Φ44mm length 20.4 x width 6.5 x height 2.5cm, Φ50mm length 20.8 x width 6.5 x height 3cm, Φ55mm length 21.6 x width 6.5 x height 3.5cm, Φ59mm length 21.8 x Width 6.5 x Height 3.7cm
