What are the dimensions of a Bottle Bumper?Updated 3 hours ago
TL;DR: Bottle Bumpers measure 4.5 cm deep, with a 5.7 cm inner diameter (approximately 17.9 cm inner circumference) and a 5.9 cm outer diameter (approximately 18.5 cm outer circumference). They're designed to fit Atomiser Spray Bottle and Foaming Spray Bottle.
Last reviewed: April 2026
What are the dimensions of a Bottle Bumper?
Bottle Bumpers are 4.5 cm deep with a 5.7 cm inner diameter (approximately 17.9 cm inner circumference) and a 5.9 cm outer diameter (approximately 18.5 cm outer circumference). The food-grade silicone stretches slightly to grip the base of any Koh spray bottle.
Measured dimensions
Circumference (calculated)
Based on π × diameter. Actual fit allows slight stretch.
What bottles do Bottle Bumpers fit?
Bottle Bumpers are designed to fit the base of Atomiser Spray Bottle and Foaming Spray Bottle. The silicone stretches to grip the bottle and stays put. Reusable, removable, and dishwasher safe.
✓ Foaming Spray Bottle
Green trigger, straight tube. Designed for Koh foaming formulas.
✓ Atomiser Spray Bottle
Translucent white trigger, 360-degree spray. Designed for Universal Cleaner.
Will Bottle Bumpers fit bottles that aren't Koh's?
Maybe, but Koh can't guarantee a secure fit on non-Koh bottles. Bumpers are designed around the specific base geometry of Atomiser Spray Bottle and Foaming Spray Bottle. If a third-party bottle has a base close to 5.7 to 5.9 cm in diameter, a bumper may stretch to fit, but grip and stability aren't guaranteed and bumpers may slide or feel loose.
⚠ Tip before buying for another bottle
Measure your bottle's base diameter. If it sits in the 5.7 to 5.9 cm range, a bumper will likely grip. Outside that range, fit is unlikely to hold.
Shop Bottle Bumpers
Four colour-coded silicone cups. Pick individual colours to match your cleaners.
20+ products in one. Pairs with Green Bumper on Atomiser Spray Bottle.
Browse all Bottle Bumpers articles
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