25 mm, 50 mm(0.984 in, 1.969 in)
1.7 bar, 3.5 bar, 6.9 bar(24.7 psi, 50.8 psi, 100.1 psi)
0.3 kg, 2 kg, 7 kg(0.66 lb, 4.41 lb, 15.43 lb)