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Ships within 48 hours · Estimated delivery Aug 24 - Aug 29
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Description
Altra 166 Spine Insert And Outsert Heavy 350 Spine 1 Dz.The Altra Reinforced Concentric Outset System (A. R. C. O. S.) for 166 Shafts is designed to deliver unmatched durability and performance. Crafted from 7075 T6 aluminum, this system includes an insert that secures into the arrow shaft at a depth of 0. 875 inches, while the outsert threads directly onto the insert, encapsulating the leading end of the arrow by 0. 43 inches. Pre installed rubber O rings help lock the outsert in place, reducing vibration
The Altra Reinforced Concentric Outset System (A.R.C.O.S.) for 166 Shafts is designed to deliver unmatched durability and performance. Crafted from 7075-T6 aluminum, this system includes an insert that secures into the arrow shaft at a depth of 0.875 inches, while the outsert threads directly onto the insert, encapsulating the leading end of the arrow by 0.43 inches. Pre-installed rubber O-rings help lock the outsert in place, reducing vibration and enhancing concentricity for a more precise arrow setup and improved downrange accuracy. Available in four spine sizes, the A.R.C.O.S. system is perfect for those seeking optimal fit and performance.Features:Fits Altra Arrows 166 Shafts;Machined from 7075-T6 aluminum for unmatched durability;Secure insert depth: 0.875 inches;Outsert encapsulates arrow end: 0.43 inches;Pre-installed rubber O-rings reduce vibration and improve concentricity;Comes in 12 pk QTY;Available in four sizes: 250, 300, 350, & 400 spine;50gn Total Weight;Accepts micro FMS insert weights;Enhances downrange accuracy and precision
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 27 reviews
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Product Reviews
★★★★★ 3
Not soft, not wrinkle free
Color: Light Grey, Size: 2 Pack King(20x36)-Regular, Color: Light Grey, Size: 2 Pack King(20x36)-Regular
Not as soft as expected. Major WRINKLED after washer/dryer. Always use max heat on dryer. Not as described. Money wasted.
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Reviewed in the United States on April 30, 2026
★★★★★ 5
These pillowcases are wonderful.
Color: Light Purple, Size: 2 Pack Queen(20x30)-Regular
I love my new pillowcases. They are cooling and easy to wash.
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Reviewed in the United States on June 4, 2026
★★★★★ 5
I love them
Colour Name: 01 - Dark Grey, Size Name: Queen (20" X 30")
I have always had super soft sheets and I left my pillow case in a hotel by accident. I used a regular pillow case from IKEA and I felt the difference the very first night I slept. It really makes a difference in the quality of my sleep.
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Reviewed in Singapore on 27 February 2022
★★★★★ 5
Good quality pillowcase
Colour Name: 02 - Pure White, Size Name: Queen (20" X 30")
Parcel was at the letterbox. Item is of good quality. Thank you.
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Reviewed in Singapore on 3 September 2022
★★★★★ 3
It's OK lah...
It's ok. Not as great as the other reviews made it our to be!
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Reviewed in Singapore on 19 December 2019