Numberblocks Boys Short Pyjama Set. These come with a short sleeved top featuring a stunning Numberblocks design and shorts with an elasitcated waistbandand and an all over print. These will make a superb gift for all Numberblocks fans. Available in a variety of sizes - 3-4 Years, 4-5 Years, 5-6 Years, 6-7 Years, 7-8 Years Keep Away From Fire - Low Flammability to EN 14878 Officially Licensed Product