Size Reference --Square wood crochet blocking board: about 3030cm/1212inches, 8mm/0.3inches thick; 304 stainless steel short rods: about 10cm/4inches long, 3mm in diameter,304 stainless steel long rods: about 15cm/6inches long, 3mm in diameter; bottom hole diameter about 2~20mm/0.1~0.8inches; other hole diameter about 4mm/0.15inchesQuality Material --The wood crochet blocking board made by premium wood offers excellent durability and stability. It provides a sturdy surface to securely hold your work in place during the blocking processEasy to Use --This square wood crochet blocking board is the perfect choice for crochet beginners. It Includes 30pcs stainless steel pins(two models), 10cm/4inches and 15cm/6inches in length. These Pins Securely Hold Your Work in Place, Ensuring It Maintains Its Shape as You CrochetIdeal Gift --This square wood crochet blocking board is an ideal gift for female elders, knitting lovers or friends. Not only are they budget-friendly, but they also guarantee to bring delight and enhance the knitting experience of anyone passionate about these craftsWide Usage --Our crochet blocking board is perfect for granny squares, afghan squares, crochet motifs and many other knitting projects! This is such a useful tool for crochet projects lovers