Review on Heat Pads with 3 Heating Levels, 4 Hours Auto Shut-Off - Electric Heating Pad, Mouse Pad, Warm Desk Pad, Extended Edition Gaming Mouse Mat, Foot Warmer Pad, Table Warm Pad by Kyle Kriglstein

In general I am satisfied with the goods, the quality seems to correspond to the price of ≈28$. HOWEVER I bought this product to use on a glass table which is very cold in winter. To my surprise, the product contained several warnings not to use the product on glass as it might crack/break spontaneously due to the heat/heat difference. This should be clearly stated in the product description/somewhere on the product page. However, I've used it on my glass table (only at the lowest temp) and it hasn't broken yet - fingers crossed it won't change. Another criticism I have is that the edges can be rounded or beveled. Resting your wrists on the edge can become uncomfortable after a while. Edit: The slightly raised rim on the outside seems to rub off where my wrists rub against it. Maybe it's just the leftover glue from its manufacture, but I wouldn't say that touching the edge of the wrist is uncomfortable.