4-1/8 x 9-1/2 (#10) Standard Flap ×
4-1/8 x 9-1/2 (#10) Standard Flap

4-1/8 x 9-1/2 (#10) Standard Flap

Link to template: https://cdn.shopify.com/s/files/1/0623/4773/9370/files/4.125x9.5_SS_Num10out_19.pdf?v=1648847035