The yellow surface is reduced by 1.0mm. The size of the rear hole is changed to 2.0x2.0mm (refer to REN1604). If the hole is too small, the mold insert will easily break (this insert is for the top buckle)
Color surface 1.0mm. Change the square hole size of 2.0x2.0mm (light REN1604), if the hole is too small, the mold inserted 鑲 piece easy to crack (this insert 鑲 piece for the do-it-yours buckle bit)
The size of the back hole is changed to 2.0x2.0mm (refer to ren1604). If the hole is too small, the die insert is easy to break (this insert is for top buckle)