This is the Arrma dBoots Fortress Monster Truck Pre-Mounted Tire Set, with Black wheels. These tires are glued to the wheel and ready for use. 

Features:

• Tires: Multi-surface 'FORTRESS' tread pattern for awesome traction in all conditions - High-quality rubber for long-lasting durability - Pre-glued for trouble-free fit and fast servicing
• Wheels: Multi-spoke design for stylish looks and increased strength - Tough nylon for durability on all surfaces - Black color for head-turning ARRMA styling - 14mm hex for strength during extreme driving action and easy servicing
• Foam inserts: High-quality foam with excellent memory return - Specially designed to give the perfect balance of aggressive grip and easy handling characteristics

Specifications:
Wheel bead diameter: 2.8" (72mm)
Width: 2.1" (53mm)
Wheel hex size: 14mm
Overall diameter: 5.0" (128mm)