Pair your bamboo straw with a coconut fibre cleaning brush, • Brush made of 100% coconut fibre (Biodegradable & Compostable) • Handle made of stainless steel (Reusable & Recyclable) • Small - 6mm diameter brush for 6~9mm diameter straws • Medium - 9mm diameter brush for 10~12mm diameter straws Each Handmade Coconut Fibre Cleaning Brush is unique in its colour, thickness, texture and diameter so it can fit in our Handmade Bamboo Drinking Straw to clean. Cleaning tips: 1. Wash with water as soon as after use. 2. Place the brush at a ventilated area for drying. * Only two steps to keep your brush long-lasting! *