saw these reviewed on YouTube and looked perfect and have multiple applications, be careful to opt for the alloy version rather than the plastic ones, they are bit more expensive but not much considering the improved quality and longevity the alloy provides.
The box arrived undamaged and within the time scale, the tools were withing moulded high density foam so well protected for the journey, do well it was difficult to get all knobs out!
As you can see from the pictures they have old and new money measurements and on alternate sides, checking against my trusty square they are perfectly square with no gap visable when held up to a light.
The clamps work perfectly and create a strong connection.
overall a professional and precise bit of kit. Highly recommended.

The package arrived in good shape with no damage. The package is made of standard plastic bag shipping material. Removing the plastic bag shows a cardboard box. Inside the box the parts consist of 2x right angles with measuring indicators on their outer faces, 4x M8 screw nuts able to be tightened by hand, 4x adjusting rack clamps, 4x right angle screw rods and 4x washers. The clamps, rods, washers and nuts are assembled as shown in the photographs. The clamp assembly can then be used with the right angled squares to firmly secure 2x pieces of wood to allow allow gluing and fastening of the wood while maintaining a 90 degree angle. Overall the right angles and clamp assemblies are well made and robust. The angles and adjusting rack are made of aluminum. The right angle screw rods and screw nuts are made of steel with the screw nut's being covered with a hard plastic enabling tightening / loosening easily by hand..