Umien Blocking Mats for Knitting [9-Pack] - Extra Thick Blocking Boards 

• Size: 9 set
• 【Perfect and Exactly Blocking Board Mat 】: If you want neat edges and corners, you can use our blocking mats. These blocking mats feature an aligned grid that allows you to precisely work on your projects.
• 【Waterproof Surface Blocking Mats】: The surface of the blocking board mat is waterproof, water drops will not penetrate inside the baffle. Easy to clean, you can wipe it directly with water.
• 【EVA Material Blocking Board for Crocheting】: The crochet blocking board mats come with a high-quality bag and 150 pins, which are easy to carry and store. The thickness is 0.75”and allows pins to push deep into foam, keeping your work taut.