◆◆―――Advance Pre-Order Sales―――◆◆
 
The next pre-order sales period is scheduled to begin at noon on Monday, October 27, 2025.
 
【Advance Pre-Order Limited Time Offer】¥500 OFF the regular price!
※Please note that advance pre-order sales may end early if reservations exceed the planned quantity.
 
Check the RankupSports official account for the latest updates!
If you don't have an Instagram account or are unable to check, feel free to contact us.

【About Pre-Order Sales】
When the pre-order period begins, the “Out of Stock” display will change to an “Add to Cart” button.
Select your desired size and proceed to the checkout page.
 
【Shipment Schedule】
Shipments are scheduled to begin sequentially starting Monday, November 4th.
Please note that delivery order may vary slightly depending on order details and delivery region.
 
【Payment Methods】
Credit Card, Bank Transfer, Google Pay, and Apple Pay are accepted.
 
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【Supervised by a Pro Basketball Team】B.LEAGUE's “Rising Zephyr Fukuoka” × RankUpSports Develop skills usable in actual games right “at home”.
The “Slippery Quiet Ball” – a home ball for serious practice, turning daily drills into future court confidence.
 
 
【Quiet Enough for Apartments】Reduces noise and vibration to “everyday life levels”—equivalent to children's footsteps or a home air conditioner's outdoor unit—even when dribbling directly on hardwood floors.
 
 
【Same Specs as Official Balls】 Size, weight, and bounce height replicate JBA (Japan Basketball Association) official standards. Unlike previous indoor practice balls, it allows practice with the same feel as game balls.
Prevents timing issues and bad habits while ensuring the
“Penetration Power”
‘Accuracy’
and “Stability” developed through home practice translate directly to games.
 
 
【No Excuses for Mistakes】 Covered with the “Slippery Socks” material chosen by over 5,000 players. Not only does it prevent surface degradation and deformation, but it also delivers:
 
・Stable ball control
・Sharper fingertip feel
・Precise handling
 
This “slippery feel” that leaves no room for mistakes effectively supports all basketball players in mastering essential skills.
 
 
【Still giving up on home practice?】
 
・Can't practice due to noise issues
・Regular sponge balls feel too different
・Indoor balls degrade too quickly
 
The Slippery Quiet Ball solves these problems!!
Enter the era of serious home practice.
 
 
【Specifications】
＜Size 7＞ Circumference 760mm / Weight 600g
＜Size 6＞ Circumference 725mm / Weight 520g
＜Size 5＞ Circumference 695mm / Weight 470g
※Due to material and manufacturing characteristics, slight variations from listed specs may occur. Please understand this in advance.