Keystone Proform Soft EVA Tray Material 5"x5" 25 pcs/pack Soft, Clear Choose Thickness:Thickness .080 inch #9597150 They also have a hollow

They also have a hollow underside to allow placement of a second wedge from opposite side

easy to use and ensure consistent mixes every time

Bis-GMA light-cured composite resin

Note: New tube design is no longer color-coded by concentration

Keystone Proform Soft EVA Tray Material 5"x5" 25 pcs/pack Soft, Clear Choose Thickness:Thickness .080 inch #9597150 They also have a hollowSoft EVA tray material in 5" x 5" sheets, Clear Great for the fabrication of bleaching trays, fluoride trays and for model duplication. The soft, clear material easily forms, and can be trimmed effortlessly. Not made with natural rubber latex. Size 25 pcs box 5"x5", Soft Color: Clear