Crafted from durable Japanese stainless steel with a non-stick silicone coating, this green avocado knife from the quality Kuhn Rikon brand features an ergonomic handle and is designed with a super-sharp blade. this knife comes with a safety sheath and a two-year guarantee. Reserve & Collect Only. We are not permitted to sell knives or blades to any person under the age of 18. Criminal Justice Act 1988 (as amended).