Caution ⚠️ 
The stretchable length of silicone is 1.5 times, do not stretch too much, or it will break. Especially in 3D foreskin function
⚠️硅膠的可拉伸長度是1.5倍，切勿過度拉伸，否則會破裂，在活動包皮上需特別留意