These binoculars are great value for money, especially as free delivery is included and they were delivered in a couple of days.They are a good balance between size and weight and fit nicely between the portability of a pair of 8 x 25 and the light gathering of a pair of 8 x 42, my wife finds them a great size. They appear to be well made and the focussing is smooth. The optic seems OK, but I am no expert but in comparison with my other larger and smaller binoculars I could not identify any significant issues.The specification stated is inaccurate, for example it states that the field of view is 303 ft @ 1000 yds where on the pictures and printed on the binoculars it states 384 ft @ 1000 yds. Comparing the field of view with another pair of binoculars I believe that the 384 ft specification is correct.. There is nothing supplied with the binoculars to state what the specification is or who makes them.It appears that these binoculars are the same as the 'BNISE - 8x32 Compact Binoculars for Bird Watching - Asika' which are listed on Amazon for £49.99 [ASIN:B01DKDOJ8C] and these receive very positive reviews. Comparing the picture of the BNISE binoculars with the K&F binoculars I could spot no difference and from looking at a review of the BNISE binoculars on you tube the box that the K&F binoculars come in appears to be the same. Therefore I believe that the more detailed specification for the 'BNISE' binoculars is also applicable to the K&Fs. These binoculars are also similar (but not the same) to the RSPB 8 x 32 Puffins but there is limited specifications published for the Puffins to compare against.One minor downside is that the close focus distance is a little long at 4m but this is not a problem on how I to use them.Overall these are a great value binoculars and I would recommend them