Very good domain for a sports merchandise shop, or any other type of kit shop.
Check out recent sales for the word "kit" - http://dnpric/es/?q=kit
BizzKit/com sold for EUR 6,000 in July 2019 (Sedo)
Webmaster-ToolKit/com sold for USD 9,600 in January 2018 (GoDaddy)
DrumKits/com sold for USD 6,501 in December 2016 (Flippa)
WaterTestingKits/com sold for USD 5,750 in June 2016 (Uniregistry)
However the sales for "bucket" in the past 3 years all below USD 1,000 - http://dnpric/es/?q=bucket
Before that there were a lot of 4-figure sales....
Do a Google search for "kit bucket" and a tonne of stuff comes up, especially for emergency kits.
WIPO global search shows no trademarks for "kit bucket" so from a legal view you or a buyer could create a brand - https://www3.wipo/int/branddb/en/ (never seen the .int extension before!)
https://twitter/com/kitbucket user is an online grocery store in India - strange name for such a business, but last update was 2016 - and they list your domain as their web address!
I'd say value is between USD 2,500 and 5,000 at the low end. It's listed on Afternic at USD 3,000 which imo is a fair price at the low end. Short, memorable, .com, brandable, generic, easy to say/spell/type/understand/good for email/business cards, and most importantly, sellable.