Notch 20' Nobasu 4 Section Telescoping Aluminum PolesawNotch Nobasu 20' Pole saw feature Silkys aggressive yet smooth cutting blades with protective scabbards. That operates the same way as the silkys saws. The Notch Nobasu extends out to 20' and is made of ridged aluminum that resists bending and provides more stability with is rectangular design. The new Improved cam collar locks with rib lock protection allow your pole to extend without worry of the pole slipping. Notchs Abrasion resistant, low profile