Instruction: Given a question and its related document, determine if the question is answerable by analyzing the information in the document. Output yes if the document addresses the question, or no otherwise.

Input:
Question: How many slots on a rail does the mount use?
Document: Very easy to use green dot laser with pressure switchand manual shut off . This laser can beseen in very bright conditions and is rail mount ready.good for paintball or real firearm!!!! price is a bargain
I like the fact that it does not have a permanent recoil pin on the rail mount; this allows for making very minute adjustments in the mounting location.As others have said the velcro on the pressure switch is utterly useless.. I don't dock any points for this as its a inferior method of mounting anyway and something I planned on dealing with right away. I just peeled mine off and used a section of bicycle inner tube to mount it to my foregrip.
The Weaver rail on the Smith 22A Target pistol is closed at both ends. This was the only laser sight I could find with a clamp type attachment rather then a &#34;slide on&#34; style mount. It zeroed in pretty quickly, I am still fine tuning it. ( I need a pistol vise to really get it right)  So far after 100 rounds, it still holds its adjustment. Really, a phenomenal piece of equipment for the price. HIGHLY RECOMMENDED.
The green laser is more easily seen than the red. Lots further and better during the daylight. Attatches to the picitiny and/or weaver rail easily and locks on strong.
Laser is awesome, still worth 5 stars. By the way, the UTG brand tacticle flashlight (that mounts on rifle rail)has an awesome and durable pressure switch for it. No problems from that much more durable switch at all.
Pros- Bright green laser. Easy to see at the range. Held aim shot after shot, until it flew offCons- Didn't fit my pistol rail. Flew off while at the range. The pressure switch worked when off the gun but would not function while mounted.
The green dot on this laser is visible for 500+ yards easily, mounts with ease on a weaver rail and adjusts even easier. You have the option of a pressure switch or turn switch in the kit; that also comes with both allen wrenches you need and a lithium battery. This laser exceeds all of my expectations by a long shot.
Came a day early. Fits my Weaver rail just fine. Secure attachment stays on zero in spite of handling and bumps. Robust anodized Aluminum construction. CR123A battery lasts a long time. Hex windage adjustment fits my needs. Very bright. Hundreds of feet in sunlight hundreds of yards at night. Plenty bright for clearing a house.
Great laser for this price point. Mounted on the piccany rail with no problem. Pretty bright laser. It is less than 5mw so the beam does not go as far as the more powerful green lasers but for my purposes it goes further than needed. Still a very bright and noticeable laser. Sturdy construction. Quality finish. Packaged well in a nice and fancy box. Comes with allen wrenches/hex keys, a 123 battery, standard switch and a pressure switch. Thank you.
Able to turn on for a steady, permanent beam with a twist of the knob at the rear of the laser.Press and hold the rear button to engage laser. Laser will stop once you release the button.Able to set up finger pressure switch which comes with the laser (currently using the other configuration)GREEN laser is great. Easy to see even in day time sun.Laser locks into rail system very well which keeps laser at zero.Over all it is nice to the price.
Answer: yes