https://www.britishironmongery.co.uk/shopsc/cylinder-pulls-and-covers/3.htm
Cylinder Pulls | British Ironmongery
At British Ironmongery we have a range of quality cylinder pulls and covers available in a range of finishes including wrought iron, gold and brass.
cylinder pullsbritishironmongery
https://www.stitchersquest.com/shop/Notions/Construction-Elements/p/Four-Half-Cylinder-Zipper-Pulls---Gunmetal.htm
Four Half Cylinder Zipper Pulls - Gunmetal
half cylinderzipper pullsfourgunmetal