Features This impact tool can gently squeeze the grooves or edges of the tile and floor to form a dense seam. Thanks to the use of high-quality PP, PE and other plastic materials, the impact block set is not easy to damage and very durable. Unique combined edge design, suitable for a variety of floors such as vinyl tile, laminate or hardwood floors, etc. Convenient for floor laying large floors, making floor laying more labor-saving and easier. The knock floor set consists of 20 knock blocks and the large quantity will meet your different requirements for floor installation. Specification: Item type: knock block Product material: PE + PP + other plastic material Application: floor installation tools Product size: approx. 6 x 3 x 0.5 cm / 2.4 x 1.2 x 0.2 inches. Package list: 20 x knock blocks. Package List 20 x Tapping Block