The tube was great but it was so difficult to return the tire, I wrecked it, patched the broken one, bought another one but patched it twice, then went to the tire shop and asked them to fix it.
Pros
Made from brand new isobutylene isoprene rubber, NOT recoated, this hose is made from isobutylene isoprene rubber, which has better airtightness, resilient cushioning and aging resistance than natural rubber