Lifebuoy skin color should be orange-red, and no color. Lifebuoy surface should be no bump, no cracking. Four equally spaced along the circumference of the lifebuoy position gassing spare tire, should surround with retro-reflective tape affixed to 50mm width. Lifebuoy outer diameter should be less than 800㎜ duck swimming ring, an inner diameter of not less than 400 mm. Peripheral lifebuoy shall be fitted with a diameter of not less than 9.5㎜, length not less than four times the outer diameter lifebuoy buoyant grabline. This cable should be fastened at the collar body Yongquan four equidistant location on the periphery, and to form four equal length grommet. Spare tire is not a life preserver, it does not use as a life preserver. Swim ring life buoy and implementation of national standards is not the same, life buoy is from the life-saving role, it has many ancillary functions; the spare tire is defined as water toys. Yiwu Little Angel Toys Co., Ltd. in the fierce market competition, I plant with "quality first, mutual benefit, quality service" business philosophy, has won the support of our customers, a number of well-known foreign suppliers.