Set Of Four 25Mm Diameter Double Butterfly Shower Door Rollers,, Or Wheels. Product Details Set of 4 Twin/double Butterfly Shower Door Rollers (2 top 2 bottom rollers) Luxurious TOP QUALITY product These rollers fit glass shower doors with 2 glass holes 26mm apart. Minimum hole size is 8mm. Top rollers are adjustable up and down to allow the door to be lined up to mate with the frame or magnetic seal where you have a pair of doors. Bottom rollers are spring loaded. Swivel action to also fit curved and quadrant showers. Diameter of wheels: 25mm Width of wheels: 6mm Finish: chrome Materials: Chromed plastic body, 304 stainless steel micro-bearings, nylon wheels, zinc alloy axis - never rust. Set of 4 Twin/double Butterfly Shower Door Rollers (2 top 2 bottom rollers) These rollers fit glass shower doors with 2 glass holes 26mm apart Dimensions: 25mm(diameter) by 6mm(thickness) Material : Nylon +ZincAlloy ?Surface ABS plating? Materials: Chromed plastic body, 304 stainless steel micro-bearings, nylon wheels, zinc alloy axis - never rust Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.