The 'Klarfit DS1S15 Dumbbell with Weights Set' is a 45.5cm long barbell that is used in conjunction with the included weights for bicep and general arm exercises.
The hefty chrome barbell has a hand grip area of approximately 12cm in length, amounting to about a third of the overall length of the bar. The bar itself feels incredibly weighty for its length (approximately 2.5kg without any weights attached). With all of the six included weights screwed on, the total weight would amount to around 15kg - which is a good weight for 'single-arm-use' by anyone's standard.
The weights are constructed from the usual hard-plastic casing, with what I presume is some sort of sand filling the inside. I've accidentally dropped a couple of the weights onto a section of concrete flooring outside whilst moving them all out to our garage, and other than a few scratches where the plastic hit the hard floor, both weights remained undamaged.
The weights are slotted on to either side of the short barbell and then securely fastened in place using the two included star locks. The star locks are incredibly easy to screw and unscrew - making it a simple 30 second job to change the weights. Furthermore, when screwed on firmly, there's absolutely no chance of the weights coming loose or wobbling along the dumbbells length.
All in all I've been incredibly happy with the dumbbell and its included weights. The construction is strong and sturdy and clearly designed to last. A highly recommended weights set for general home gym use.
PLEASE NOTE - This product was supplied to me for free for a 100% unbiased review.