3寸双面相框，安装时一正一反，建议塑封效果更佳。

相纸我使用的是180G5寸(3R)相纸打印之后裁剪一半，外加3寸塑封膜。

完成组装总共需要打印21套相框。

3-inch double-sided photo frame, one front and one back when installed, it is recommended to seal it with plastic for better effect.

I used 180G 5-inch (3R) photo paper and cut it in half after printing. Add 3-inch plastic film to complete the assembly. A total of 21 sets of photo frames need to be printed.