Sizzix Tim Holtz Alterations Collection 3 Pack Embossing Diffuser Set # 1 Sizzix Accessory - Embossing Diffuser 3PK, Set #1 Category:Sizzix Machines & Accessories Constructed of high-quality ABS Plastic Embossing Diffuser measures 4 1/2" x 6" x 1/8" Category: Sizzix Machines & Accessories, The pack size is one but the pack contains 3 diffusers.