OffBits T-RexBitCombining familiar parts, cutting edge design and a 21st century approach to collaboration, the OffBits system brings a unique new twist to classic construction toys. With the help of the illustrated instructions, you can transform the variety of screws, nuts, and unique metal and plastic parts into a spectacular and powerful T Rex model. Once you've completed T RexBit, the fun doesn't stop there! Unpack the kit and follow the instructions to build