description 20 v max pencil vibrator kit the 20v max pencil vibrator kit comes with 4 ah battery, giving you the power and runtime you need to consolidate concrete. the 1 - 1/8" diameter vibrator and 14,000 vpm (under load) deliver maximum consolidation power and efficiency. the 4 foot long flexible shaft provides ease of use and long reach. california proposition 65 warning. view warning label features 1-1/8 in. diameter vibrator delivers maximum consolidation power 4 ft. long flexible shaft for easy use and long reach 14,000 vpm (under load) delivers maximum consolidation efficiency 20v max; maximum initial battery voltage (measured without a workload) is 20 volts; nominal voltage is 18 specifications acme tools brand name dewalt acme tools part number dce531m1 assembled weight (lbs) 8.75 battery ampere-hour (ah) 4.0 battery voltage (v) 20 california proposition 65 warning required yes case included no cordless / corded cordless country of origin mexico globaltradeitemnumber (gtin) 00885911428002 internal supplier part # dce531m1 internet product code (ipc) 39a34f0e8e8 length (in) 59 manufacturer warranty 90 day money back guarantee/1 year free service contract/3 year limited warranty net tool weight (lbs) 8.75 number of batteries included 1 package contents dce531 pencil vibrator; 1 - 20v max* 4.0ah batteries; charger package depth 8.000 package height 3.750 package weight 11.6 package weight (lbs) 14.4 power source 20v max* batteries upc 885911428002 variable speed no