Small particle size and Super absorption of 350% - Unscented. Composition: sodium bentonite Colour: Grey. Particle size: 0.5 � 2.5mm. Clumping power: Super clumping. Duration: 1x18kg = 75 days if used according to instructions. Canada litter - Unscented Scent Small particle size and Super absorption of 350% - Unscented.