I am very pleased with the unit I received and I expect it to work well for me.The tremolo I received matched the photos and most of the measurements given in the diagram, with one significant exception: the block is not a "short" (36 mm), it is a full depth (40-41mm). This was not a problem for me, but it differs from the product description and may stick out a mm or two when installed in a thinner Squier body. Also, the diagram appears to show cast saddles, which is incorrect.The block looks almost like steel but is not magnetic. It is polished, heavy and seems to be a quality alloy, not the crappy, soft pot metal you'll find on most Squier blocks.The saddles are bent steel with a matte nickel finish and are seemingly really nice. The pop in arm fits snugly, has an adjustable set screw and seems like it will work very well. The arm tip is smooth without seams and slides on for a snug fit. The posts seem pretty solid, but the claw, claw screws and springs are very lightweight. Two allen wrenches are provided... one for post adjustment and another small one for the arm set screw.The plate is etched "Wilkinson M Series" and saddles are stamped "MVB" but an exact model number is not shown on the tremolo itself. It was packaged with Musiclily cardboard backing with a sticker on the back that reads MX1794CRFBA and Made in China. I believe MX1794 is the basic model number and I suspect CR stands for Chrome (plate) and FBA stands for Full Block Alloy.I am unable to compare exact measurements or quality, but this has very similar features as the Fender American Professional Tremolo (two point, vintage saddles, pop in arm) at less that one fourth the price. There are minor differences... the American Professional appears to have a steel block, a screw on plastic tip for the arm, and better quality claw and springs.I was looking for a functional and affordable option for my current build, since I have less than $200 into the rest of the parts. I was interested in trying a two point system, I prefer vintage looks and bent steel saddles, and I dislike screw in arms, so this one fit my needs nicely. Yes, this bridge comes from Wilkinson's Made in China budget product line, but I feel like I got a really nice tremolo for less than $25.Update: after moderate use, both posts began to fail. They are softer alloy, and deformed enough to cause issues. The Allen screw heads got stripped and the fulcrum edge dug into the side of the post. I replaced the posts and bushings with another Wilkinson set that had higher quality stainless posts and brass bushings. They cost roughly $12, and all is good now.