Description: This adapter enables the listed batteries to be used for RYOBI 18V tools, and lets you enjoy the benefits of extended operating time of batteries on existing 18V tools. With USB interface, when the phone is temporarily out of power, you can use it as the power bank. Made of fireproof ABS material, the battery adapter is is safe, wear resistant and durable to use. The length of this adapter is 11cm, width is 8.5cm, height is 7.9cm. It can be used for the 18V battery and the backup battery in most for MAKITA batteries: BL1860B/BL1860/BL1850B/ BL1850/BL1840/BL1830B/BL1830/BL1820/BL1815, etc. Item Name: Battery Convertor Material: Fireproof ABS Model: MT20RNL Type: for Makita 18V Battery to for Ryobi 18V Battery Rated Voltage: 18V Applicable Products: for Makita 18V Conversion Product: for Ryobi 18V Color: Black Features: 18V to 18V, Replacement, Safe Compatible Model: for Ryobi P102, P103, P104, P105, P107, P108, P109 and fit for Ryobi 18V ONE+ System Cordless Power Tool. (NOTE: Not fit for Ryobi cordless saw P551, for Ryobi 18v radio, lamp eg, for Ryobi P742 P746) Size Details: Size: 11cm x 8.5cm x 7.9cm/4.33" x 3.35" x 3.11" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Battery Convertor 1 x User Manual