Sharp Blade These ratcheting pruning shears are made of hard, long-wearing SK-5 steel with a hardness up to HRC 60. The blade is built to cut tough branches smoothly without harming your plants. Cut Thick Branches Large opening of 35 mm / 1.38 inch allows easy cutting of thick branches, up to 20 mm / 0.79 inch in diameter. For blade longevity, it is recommended to cut branches under 18 mm / 0.71 inch in diameter. Save More Energy Stainless steel spring-loaded with a ratchet mechanism. The spring returns the clippers after each press, delivering a silky smooth cutting process. The ratchet mechanism reduces effort and enhances gardening efficiency. One-hand Locking Clasp A thoughtfully designed locking clasp improves operation efficiency. Simple to use: push back to lock and push forward to unlock, meeting user comfort requirements during gardening. Anti-slip and Safety Rubber-coated handles increase grip friction, reducing slip even during long use. This design enhances safety and ergonomics for comfortable gardening. Durable The metal surface features a optimized Teflon coating that resists heat, impact, and abrasion, improving performance and extending service life. Use scenarios - Pruning thick branches on fruit trees and ornamental shrubs where extra bite is needed. - Trimming hedges and vines that require strong, precise cuts. - General garden maintenance tasks involving branches up to 20 mm, with best longevity under 18 mm diameter.