This Blaze Countertop Sleeve Is Required When Using Your Blaze 26 Inch Pizza Oven. This Countertop Sleeve Is Constructed Of Stainless Steel. The Countertop Sleeve Is Covered By A Lifetime Warranty That Warrants Against Defects In Manufacturing And Workmanship. This Warranty Extends To The Original Purchaser Against Manufacturer Defects For Products Purchased For Ordinary Single-Family Home Use.