Blocking explained: When and how to block crochet projects - Dora Does
14 Creative Blocking Techniques with Crochet
Iswabard Crochet Blocking Board Handcrafted Knitting Blocking Mat for Knitting Crochet and Granny Squares, Full Kit with 15 Stainless Steel Rod Pins, Gifts for Mothers, Grandmothers, 11 x 11 inches : Amazon.co.uk:
Blocking Mats for Wet and Steam Blocking by Woolove - Set of 9 Marked with Numbers to get Precise Grid - 1 cm Thickness Includes 50 T pins, and Storage Bag :
How to make a blocking board for granny squares - YouTube