The OXO HS-9 Headset/headpart uses a semi-integrated system with Steel material and ball retainer bearings.
OXO HS-9 Specifications
Top Size: Outer Cup Diameter 44 mm, 1-1/8" Oversize Threaded Cap
Bottom Size: Outer Cup Diameter 44 mm, Inner Diameter 30 mm (Crown Race)
Material: Steel (Black), Ball Retainer Bearing (Loose Balls)
Product Weight: +/- 170 grams
B2B Information (for Dealers)
Contents per box: 100 sets