Heighten Model- This tile clips have a hole of 28mm/1.1in high and 23mm/0.91in wide, suitable for tiles with a thickness of 15-23mm. The width of the tile spacers is 3mm, this tile leveling system spacers can hold the tile spacer uniformity. New Material Tile Spacers 3mm- The 3mm tile leveling spacers are made of new material (non-secondary recycled material), environmentally friendly, non-toxic, high toughness, breakpoint design, to achieve uniform breakage from the root. Reusable Wedges- The tile leveling wedges 84mm long, 21mm wide, longer and wider, with a reinforced bottom design, wear-resistant and pressure-resistant, reusable. Tile Leveling Pliers- Tile leveling tool with force saving lever design, effectively fixing the clips and wedges. 6 adjustable gears, more convenient construction. Wide Range of Applications- This set porcelain spacers for 20mm tiles widely used in indoor, outdoor courtyard, large plaza, such as marble and rock slabs thicker tile paving.