Cactus & Succulent Gripping Tweezers Tools in All Sizes and Types. Extra-Long Tweezers, 6 inch to 18 inch Tweezers – angled and curved plus straight tweezers. From small to big, we have the perfect cactus pruning tweezer for your gardening task. Stainless steel sure-grip tweezers allow you to prune your cactus plants safely.