Grimm's 20mm Purple And Pink Threading Beads 
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Threading these Grimm's 20mm coloured beads onto a string encourages focus and determination while also stimulating hand-eye co-ordination. Grimm’s wooden threading beads are nice and chunky, with easy to thread holes through the middle and a durable, waxed finish. They also come in a rainbow of colours and sizes. Diameter 2 cm.