Using special Material can guarantee our oil pumps no chemical reaction with oil. The oil pumps can also be applied to lotion, oil, and water products. Besides that there are two highlights of this pump. One is 8 Shape: The clip was used very convenient and friendly. No matter the pump is at open or close status, the small part clip is always enclosed to the pump, so it wont be missing and is safe for children. Another is Suck-Back Function: This function can prevent residual liquid from dropping into the table after using and also can from being contaminated by dirt.