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When using the pump shower gel or hand sanitizer,the liquid is easily to be pushed out more than you need, resulting in unnecessary waste; this "C-ring" can resolve this problem, install it in the pump head, reduce half of the head pressing original distance, so to reduce the pushing liquid,it can save resources effectively, reduce waste; It is made of silicone material, safety ,environmental and durable.
Huqiao Uinversity
Quanzhou, China
Guokun Liu,
Huqiao Uinversity