Perler Standard Pegboardsare essential tools used for creating fuse bead art. This package contains 4 interlockable transparent Pegboards, 1 piece of reusable Perler Ironing Paper and instructions. They are fully compatible with all Standard Size Fuse Beads. They can hold 29 x 29 beads. These pegboards are used as a base to hold your beads in place while crafting your design.These pegboards can be interlocked infinitely, giving you the ability to create art as large or as small as you desire!