Specification Brand : Imdinnogo BulletPoint1 : 3030 Profile: Applications Professional 3D Printers ( MK3 MK3S MK3S+ 3d printer etc), automation equipment, workbenches, lasers, stands, furniture, etc. machinery, fitness equipment, precision printers, automatic cutting machines, form a perfect solution for custom machine frames, etc. BulletPoint2 : Model: T Slot 3030, Dimension 30 x 30mm total length is 120mm/4.7 inch, Tolerances Length(+/- 3mm), high-strength European standard aluminum profile BulletPoint3 : Material: Aluminium Alloy - 6063 T5, the T-slot has smooth edges, not v slot. BulletPoint4 : Material: Aluminium Alloy - 6063 T5, the T-slot has smooth edges. BulletPoint5 : The extrusions are a great framing material as they are adjustable and can hold T-Slot Nuts on all 4 Grooved Surface sides. ItemName : Imdinnogo BCZAMD Length 120mm/ 4.7in T Slot 3030 Aluminum Extrusion 30X30mm Profile Standard Anodized Linear Motion Guides Rail for Prusa i3 MK3 MK3S+ 3D Printer Part and CNC DIY Accessories-Black ItemPackageDimensions_Height : 1.5 centimeters ItemPackageDimensions_Length : 15 centimeters ItemPackageDimensions_Width : 15 centimeters ItemTypeKeyword : linear-motion-guides Manufacturer : Imdinnogo Material : Aluminum ModelNumber : AiUS-120mm 3030 T Slot Extrusion NumberOfItems : 2 PartNumber : AiUS-120mm 3030 T Slot Extrusion ProductDescription : What you get? 2Pcs 3030 T slot aluminum extrution-120mm 4Pcs antivibration feet