These Tulip markers are an ideal tool for crochet and knitting. Use them, for example, to keep the sleeves of a sweater or cardigan in place while you assemble the garment. The pins have a rounded point and a large, flat head in the shape of a heart or tulip. The size of the head prevents the pin from accidentally disappearing into a knitted or crocheted stitch. Each pin is 52mm long and 1mm thick. A pack contains 9 markers in 3 different colours.