ITEM NAME:Activated carbon filter sponge solder smoke absorber ESDfume extractor 13x13cmBX Feature: 100% Brand New and High Quality Smoking instrument filter sponge adopts 493 special sponge,it is for air filtration,it can protect environment well. Specifications: Specification:493 special sponge Material:Polyurethane Size:13cmx13cm(5.12"x5.12") Performance:anti-static. Type:High efficiency. Use for Air filtration. Package includes: 1 x Activated Carbon Filter Sponge Note: 1. Due to different producing batches, there may be deviation of 2-3cm for items. 2. Colors on your computer monitor may differ slightly from actual product colors depending on your monitor settings..Specification:493 special sponge. Use for Air filtration.