Product size: ring 28mm, egg jumping part: 42 * 28 * 17mm (manual measurement will have difference)
Product model: MRB-007 Packing size: 72 * 102 * 44mm
Product name: M-13 lock fine ring
Material: Food grade silicone
Product gross weight: 46G Box gauge: 120
Package Contents: M-13 lock ring * 1, spare battery (three button batteries), user guide * 1