The OX Pro Tile Level System Wedge and Spacer - Wedges bag of 100 features a set of reusable wedges that ensure your tiles are aligned. Each wedge has saw-shaped teeth so that they can be adjusted to the crosshead precisely. These wedges are designed with a round base to protect ceramics.The OX Pro Tile Level System Wedge and Spacer - Wedges bag of 100 features a set of reusable wedges that ensure your tiles are aligned. Each wedge has saw-shaped teeth so that they can be adjusted to the crosshead precisely. These wedges are designed with a round base to protect ceramics.