PSV-8, PSN-8G, PS-8PLUS-R and PSA-8F feature a plate to prevent the nut from loosening and maintain blade tension. PSV-8 is Anvil type pruning shears with aluminum handle that can easily cut through thick branches.PSA-8F has a wide blade for sharp cutting performance. It also has a strong aluminum handle. PS-20R is ultra-lightweight (160g). PST-8 have a thin blade for good cutting performance. TS-66B easily cuts flowers and twigs. PS-7Y has a highly visible colored grip that is difficult to lose.