Remember first and foremost that hockey is a skill sport; it may be rough, but a player's gear becomes very personal past a certain skill level and experience. Thus, in selling to such a fickle market of players, the more high traffic knowledge you can disseminate about the particular product you wish to sell, the better off everyone will be; you will sell more and get better feedback, and they will get exactly what they want. So, to start off by gear type, here is the information that you must list:

Sticks: (this is the main area of offense by sellers in not listing pertinent info) you must list the flex rating, use, curve, and lie if you know it. Different companies denote flex differently, but they generally correspond nicely; some stamp them stiff, regular, etc., and some use 85, 100, and 110. Others use 180, 220, 260, 320, etc. This will generally be stamped on the outside of the shaft of the stick, or worst case it will be stamped on the inside of the stick at the butt end (opposite of the blade). For the curve and lie, pictures illustrate best, and you only need 2-3 pictures per stick auction, 1-2 for shaft auctions. For the curve, take a digital picture straight down the shaft with the blade facing away from you, then a profile shot of the blade from the side to show the lie. For shafts, show any damage from use and the flex if possible, and for blades simply show the curve and blade profile shots.

All protective equipment:

List the Brand, Model series and #, size, and use (Example: Bauer HG 5000 14"- Bauer Hockey Glove 5000 14 inch size).

Gloves: you as well need to list the palm material and shell material, since they vary and very much matter to serious hockey players, especially with the amount of pro return gear found on Ebay. Take pictures of the palm and outer shell, as well as documenting any damage from use.

Shinguards: as well list if they come with straps or if the buyer will have to provide their own.

Skates: A very delicate area for players and likely the most personal piece of equipment. List Brand Model, size, and width (Example: Bauer Vapor XX 9E; Bauer Vapor XX skate in size 9 and E width). List any use as usual and whether or not they have been baked, as that changes the internal fit of the skate. A smaller courtesy would be to list whether the skate laces are waxed or not, as many players prefer one over the other. For roller hockey skates, list the wheel Brand, model, durometer, and size (Example: Rink Rat Hot Shot 76a 72mm). As well list the info for the type of bearings inside the wheels and their condition. For ice hockey skates, list the info for the holders, runners, what type of steel, and their respective conditions.