crankbrothers sterling sg pump 2016 is an air pump quality, elegant and light, with only 141 gr. weight. composed with a universal head that makes it compatible with schrader or presta, valves without using adapters heads. the model presents a fine-tuning of pressure with a manometer of large and easy to read. the body is made entirely in light and strong aluminum. like all crankbrothers products copyright retto.com has been designed with high parameters of quality, design and durability. features:-weight: 141 grams. -universal head. -length: 198 mm -material: 6061-t6 aluminum. -pressure: 100 psi / 7 bar. -indicator: 100 psi. -5 years warranty.