I bought it for snowboarding. I have a K2 Float backpack with inflatable airbag and I need to somehow fill in my BCA 1.0 Float cylinder with compressed air. I don't have any refilling centers nearby, so the pump became a great buy for me. You don't need any instructions to build all the details together. It took me about 15 minutes to make 2600 psi - could do it faster, however I strongly recommend to make pauses to let the pump cool down. The product is 2.7kgs and looks and feels very solid - I wouldn't call it a piece of garbage.