There are many brands of corner guards in stores like mothercare, toysrus, wise kids....
Besides corner guards, I also use the "Jumbo Edge Guard" which I got from Bump to babes. It's a cushion-like guard for edges and gives more protection.
You can get it from "Bump to babes" in Central Pedder Building? (sorry forgot the building name, it's next to Shanghai Tang). They also have a store in Ap Lei Chau.
I bought the Edge Guard la, from Bumps to Babes (5/F Pedder Bldg, 12 Pedder St. Central)
This is included 4 x 18" foam lengths, for your coffee table and other funitures, it is a impact absorbing foam adheres to sharp edges to protect your Baby ar. I will try it tonight.
The Jumbo Edge Guard actually good for the "side" too, such as your coffee table, when you fixed the jumbo edge guard it can be potect the concer as well..becasue the desinge is (90>L shape), for my glass table, it just use the concer potector at the moment.