Package includes: There are 20 tile leveler kits + 2 special wrenches + 20 steel needles. This tile leveling system kit is a great DIY tool for enthusiasts and professionals to effortlessly level tiles. Materials: Leveler and spacers are made of high quality PP plastic, steel needle is stainless steel, steel needle thickness: 1.5 mm. which is wear-resistant and reusable, very sturdy and durable. Function: This tile leveler can quickly level without damaging the tiles. Position, level, leave seams and quickly lay tiles. Reusable: The tile leveling system is reusable. It can be easily attached or removed with a wrench, user-friendly adjustable design, easy to operate and easy to adjust. Applicable: The bottom disc design can fit the tiles tightly. It is a great tool for floor/wall construction.Suitable for tile thickness from 3mm to 16mm, suitable for tile spacing 2mm.