Ultra lightweight durable, easy to use, kind to the hands, good for the posture. Let the crochet grow before your eyes in fastest time ever. Any diameter will make a make up to a single bed throw in 10-14 hours or smaller floor rug in 2-4 hours - eg bath mat, bedside rug or small fireside rug. Any diameter will make up to a double bed throw in 12-16 hours / medium size floor rug in 5-8 hours - eg for living room/large bedside/fireside rug. Any diameter will make up to a king size bed throw in 16-22 hours / large floor rug in 9-12 hours – eg for living room/conservatory rugs. When Extreme Crochet you sit with your shoulders and neck relaxed. You work slowly and the cloth you are making grows fast. All our tools are also excellent for making HAMMOCKS and FENCE panel pieces in strings and ropes. Depending on the multiples of strands you use you get approx the following STITCH SIZES: 12mm tools - 0.7mm—1.2mm 15mm tools - 1.2mm—1.7mm (1/2” to 3/4”) 20mm tools - 1.7mm—2.5mm (3/4”to 1”) 25mm tools - 2.5 mm—3.5mm (1” to 1 1/2”)