Instruction: Analyze a question and its supporting document. Predicting answerability based on the information provided in the document. Output yes if the document contains relevant information to answer the question, otherwise output no.

Input:
Question: does it comes with extension ?
Document: When you have a deep basin kitchen sink, it can get into the smallest spaces and with a long socket wrench extension makes the install or removal much easier.
This little gizmo realy does the job. Rather than screwing around with a basin wrench that doesn't work get your 3/8 or 1/4 ratchet and extension and tighten the nut. Problem solved!
Sure beats a basin wrench when putting in new faucets and or water lines in kitchen or bath. I use a 1/4 inch drive ratchet and a 10i inch extension with mine.
The Basin Buddy frequently falls off the 1/4" socket adapter when it "sticks" to the nut and I retract the socket (with 12" extension) to re-position it. I solved the problem with two small pieces of duct or electrical tape and it rarely falls off now.Buy this now, now, now!
I own this and theRidgid 66807 Faucet and Sink Installer  Model 2006.Unfortunately neither will do 15/16" brass lock nuts. The basin buddy has a 1/4" socket hole (you need to buy an extension) and a 1/4 to 3/8 adapter (so you could buy 3/8 extension).
As this space is different for every work space, the best length of extension is different for each sink. I found it very convenient being able to change extension lengths to meet my needs.The tool works on both the standard 1/2 inch pipe connection found on most standard faucet supply lines and on the nylon retention rings that hold the faucet in place.
This Basin Buddy rescued the day. I had to remove two whitish nylon locknuts holding down an ancient kitchen faucetand the only way I could get them out of there was to use this tool -- all else failed.I am eternally grateful -- seriously. Nota bene:  I needed to use my own standard socket wrench with an extension in orderto use Basin Buddy.
This is made of nice strong metal - no plastic here. It beats the old-style wrench all hollow when reaching up underneath a deep kitchen sink. It saves me tons of pain and strain. Well worth the price (they deserve their patent cut for this one.) I use a 1/4&#34; long extension and 1/4&#34; wrench, usually. The adaptor is nice if you need more muscle than a 1/4&#34; ratchet can deliver.
I bought this tool knowing I had a tough task replacing a bathroom faucet on a pedestal sink in a powder room. I tried removing the plastic retaining discs on the old faucet using a basin wrench and the plastic tabs kept snapping off. I put this tool on a 10" socket wrench extension and they came off as smooth as can be. It worked perfectly for tightening the new faucets retaining discs and also for tightening the brass water supply compression nuts. Kudos to the inventor of this tool! !
FYI, I had a plumber install the faucet less than a year ago and within a few months, the nut started coming loose, causing the faucet to slide and rock off the cover plate. He had warned me that the nut will work itself loose and must be retighten regularly. The faucet was a poor design on the part of Delta to have a single hold down nut that comes loose so easily from normal use.
Answer: yes