This is what Life-Link says:
Series III Blade
If you're thinking this is just a plastic shovel, think again. Life-Link's the Original Polycarbonate Shovel (U.S. patent #DES267468). All of our Polycarbonate Shovels come with a Life-time Warranty
. You brake this blade, we'll replace it...no question about it. Why should we offer this? Because we are so confident in the strenght and dependability of our polycarbonate blades. Life-Link Polycarbonate shovels have been the choice of Pro-Ski Patrollers to Everest Guides since the 70's. The life-time warranty on blades does not cover engine heat/exhaust damage.
A bent aluminum blade can ruin a shovel and a heavy shovel can ruin a day of skiing but a super light polycarbonate blade will do neither. Sold in three styles: the fixed lenght ultra-light 3D, extendable 3DX or the compact 3DXS. There is a Life-Link Polycarbonate shovel and color for everyone.
Handles are made of 6000 series aluminum tubing. Handles are detachable from blade by means of locking detents. Shafts have rubber grip surface for positive grip surface in cold conditions. T-grip colors match the blade and have two holes for shoulder strap webbing. D-grip available on 3DX only.
3DX Polycarbonate shovel
Our most popular shovel. The 3DX, with it's telescoping handle, will let you stand up straight and move snow with comfort and ease. The detent telescoping system is easy to operate with gloves on. Small, light, packable. Be prepared, always carry a shovel in the backcountry. Slingblade system compatible.
Detached length: 19"
Attached length: 26"
Extended length: 36 1/2"
Weight: 24 oz.
T-grip and detachable, telescoping handle
Light, packable and very strong shovel. A good alternative for mountaineers and skiers. The plastic does indeed endure heavy use, I have had no problem with this shovel. Hereby recommended.