BENECREAT 30 Set Black Boston Bottle Cap, 18mm 18 Tooth Plastic Replacement Bottle Cap with Hopper Inner Plug for Essential Oil Bottle and Reagent Bottle

Size: The size of these sealing caps is 25X21mm and the inner diameter is 17mm; the inner plug size is 15.5X14mm, the inner diameter is 8.8mm, and Hole: 3.2mm, a total of 30SET, please confirm the size before buying.
Material: These lids are made of high -quality plastic materials and can be repeated multiple times. It is very suitable for replacing lost or damaged bottle caps.
Sealing Design: Insert the plug into the seal area to form a sealing environment and save its liquid in a bottle to prevent liquid leakage.
Easy to use: Provide a good torque reservation, which can be reused durable, and the plastic cover will not rust over time.
Wide use: Seal and tighten the lid on the bottle to store liquid; it is very suitable for the drip bottle, distributor and place of the growers.

Specification:
Material: Plastic
Size:
cap: about 25x21mm, inner diameter: 17mm, 1pc;
hand: about 15.5x14mm, inner diameter: 8.8mm, hole: 3.2mm, 1pc.

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