There are marks on the back, but there are no issues with usability. It is being sold at a slightly discounted price. [Product Description] This is an auxiliary tray for efficiently arranging iron beads. Simply put the beads in the tray and gently shake it to align them in a row (it is recommended to use more beads as it is a mini size). The work of transferring them to the pegboard with tweezers becomes smoother, and the working time can be significantly reduced. Recommended for beginners as well as advanced users who create delicate and complex designs. It's a convenient item that reduces the frustration of beads not aligning and being difficult to pick up with tweezers. The tray can be used repeatedly, and you can temporarily store the used beads in the receiving part of the tray. [Specifications] Compatible bead size: 2.6mm in diameter (*Mini Nano size) Weight: 33.5g Body size: 9.5cm long x 7.5cm wide Material: PLA Colors: White, Blue, Yellow [Notes] Tweezers are not included. This product is handmade. Due to the nature of the manufacturing process, there may be layer marks, fine scratches and burrs, black dots and lines, etc. Please note that the texture may differ slightly from the photos. It is compatible with small iron beads and is not compatible with regular-sized iron beads. This is a time-saving and convenient alignment tray that allows you to efficiently arrange iron beads. Tags Educational toy, elementary school, brain training, development, Nanoblock, Perler Beads, Kawada, Nanobeads, Mini Beads