The Chikamasa B-500SRF are curved, stainless steel blades with a fluorine coating. Fluorine makes the blades on the Chikamasa B-500SRF sap resistant. A curved tip allows you to reach hard-to-manage places. The outside edges of these Japanese-steel blades are grounded round, a first for Chikamasa. Rounded edges on scissors protect the grain of the flower, grape or other agricultural commodity youre pruning from bruising or other damage as you work. The B-500 series is the newest non-spring scissor from Chikamasa, designed specifically for thriving and ever-expanding agriculture growers in the USA. Chikamasa combines knowledge from the ancient art of bonsai trimming with the needs of modern consumer agriculture. The result is a line of specialized garden scissors ideal for long hours of cutting and pruning in the field or chair.