The Angstrom Ultimate Collection is a bundle with four premium, competition ready speed cubes. Angstrom puzzles are lubed with Lubicle Black on the core and a combination of Angstrom Gravitas, Angstrom Dignitas, and DNM-37 on the pieces for an incredibly quick and clean feel free from the drag ordinary silicone lubricants can produce. This bundle includes the Angstrom Valk 2 M, Angstrom GAN356 XS, Angstrom AoSu GTS2 M, and the Angstrom Valk 5 M.