How much does this cost to the nearest dollar?

Kastar D650 Battery 2 Pack, Ni-MH 6V Replacement for ECOVACS COD Hoover RB001 Ecovacs Deebot D650 Deebot D660 Deebot D680 Deebot D710 D720 D730 D760
Package Includes 2 Pack Batteries Kastar battery is certified with CE and Notes 1. Please fully charge the battery pack before use. 2. Do not burn or puncture the battery. 3. Make sure to charge the battery at least once every 3 months, because the self-discharge of Ni-MH battery may lead to the battery over-discharged. Replace Part No. ECOVACS HOOVER Compatible with the following

Price is $56.00

Price: $55.99