The J.A. Henckels Twin Professional S (or Pro S) knives boast a comfortable, ergonomic three-rivet handle design that won" t wear against the hand and helps to provide control when doing any cutting task. These durable Novodur handles are perfectly bonded to the full tang of each knife for stability and durability. The impeccably balanced super bolster provides weight and adds balance for safer and more professional cutting. This boning knife is great for all your food with bones or cutting needs. The boning knife is flexible so you can really get into those hard to reach areas where a little meat is still hanging on. Also, the flexibility allows the blade to be more versatile and less worry about breaking or slipping.