Detailed description:: Product Name: Mini Carbon Monoxide Detector Material: ABS Size: 134.5×32.5×16mm Display: 1.1-inch LCD backlight Detection range: 0-999ppm Battery: 2×1.5V AAA battery (not included) Response time: ≤500ppm: about 5 seconds ＞500ppm: about 2 seconds Alarm mode: analog bar, red backlight and buzzer Color (Optional): Black, White Notes: 1.There may be slight differences between the picture and the actual color of the commodity. We will try our best to show you the exact color. 71.Please allow slight dimension difference due to manual measurement. Ergonomic Soft Handle Crochet Hooks and Lace Crochet Hooks This crochet kits contains 2 different kinds of crochet hooks in different size. The ergonomic soft handle crochet hooks have sizes 2.0/2.5/3.0/3.5/4.0/4.5/5.0/5.5/6.0mm. The lace crochet hooks have sizes 1.0/1.25/1.5/1.75mm. Each crochet hook handle is marked with its size which make it convenient to distinguish and find the size needed. Portable and Easy to Storage This crochet hook set comes with a storage case features small blue flowers which is lightweight and portable to carry when go outdoors. Also, the storage case is waterproof and washable for long time use. With this storage case, it is easily to store these knitting accessories. Ergonomic Comfortable to Hold These crochet hooks feature an ergonomic design which is comfortable to hold reducing the stress on fingers and wrists. Also, the crochet hooks are designed to prevents slippage for a easier knitting.