It's DIY Time GGS 50 Grey Granite Stone Self Adhesive Vinyl Floor Tiles

50 tiles will cover 4.8 SQ. MTRS Perfect design for hiding dirt Easy to Lay Flooring (just peel and stick), Complete with Laying Instructions Hygienic-easily Maintained (just use a wet mop/cloth or use general cleaning agents) SIZE: 305mm x 305mm (12" x 12"), Manufacturer: It's DIY Time