I bought the AstroZap Flexible Dew Shield for my Meade ETX-125. I wanted the non heated shield cos I didn't want wires hanging down when I didn't need heat, deciding instead to get a separate heater. OPT's shipping was fast, they sent it out the same day. Because it is a flat stiff piece, which is then rolled, it took a little maneuvering to get it in place where it is fairly tight on my scope. I found the easiest way being to move it down my scopes barrel then put the two sides together secured with attached the velcro tape. After which I gently moved towards to end of my scope to a position I wanted it. I said gently because I didn't want to take a chance on scratching my scope. As it turned out sliding the shield upwards didn't scratch anything. This shield works as advertised. I am able to remove and replace my scopes lens cover with the shield in place. I would buy this dew shield again, and not hesitate to buy it from OPT.