Aspect Peel and Stick Rustic Clay Matted Glass Backsplash Kit for Kitchen and Bathrooms (15 sq ft Kit) Backsplash Kit includes 15 boxes of Aspect tiles (total of approximately 15-square feet) and four 24 inches of Matte Grey Edge Trim pieces 4 in. x 12 in. matted glass tile with an easy to use peel and stick backing making installation quick and easy Glass tiles can be cut with scoring tool or a glass-cutting wet saw Tiles can be cleaned with soapy water, glass cleaner or a grease cutter Do-it-yourself product does not require grout, eliminating the need for a tile installer