In the standard kids were four rings are provided. Smallest Ring - Stocking or Small Round Objects like Water Bottle Holders. Second Size Up - Baby Hat Sizes
Leisure Arts Knitting Loom Circle Set - 4 Hook - Craft Warehouse
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Sock Loom Knitting Is Easy, I Promise! – C.B. Wentworth
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Loom Knit Hat Tutorial – Easy Beginner Project with Video