This universal set fits on all UFS frames(including Sago Frames), which could help to fix your UFS frames(frames of aggressive skates frames, or frames like Wizard Frames) to normal hi-low mounting boots(Urban skates like Rollerblade, Flying Eagle, FR, etc.)

Package includes:
– 2 rear blocks
– 4 washers(2 rubber+ 2 metal ones)
– 2 short mounting bolts 16mm length, choose M6 or M8
– 2 longmountingbolts25mm length, choose M6, M7or M8

Remark:
M6 bolts go with most boots in the market(Rollerblade, Powerslide, etc.)
M7 Bolts go withFlying EagleF7 Optimum and Drift1, Drift 2.
M8bolts go with Flying EagleF5s Eclipse, F4 Raven, F6s Falcon, F3s Origami, F1s Mantra, and SEBA Brand
FR Bolts go for FR brands (5/16 inch)