For Use With An E-Bike, A 36V 48V 1000W Motor, A Locking Throttle Twist Grip, Product Details GOOD MATERIAL:The Motor Brushed Speed Controller's shell is made of aluminium alloy with groove design, which can protect the inner circuit and good for heat dissipation to avoid thermal overloading. BATTERY DISPLAY:Designed with battery display, can clearly show the power remains, makes it easier to see. DURABLE:The wires and interfaces are durable, and ensure low malfunction of long time use. MORE CONVENIENT:Easy installation, fit for 1000W 36V/48V brushed motor.NOTE:Not suit for 3 phase motor. APPLICATION:Suitable for e-bike, mini bike, pocket bike. 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.