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Set of four plastic binders in red, pink, blue, green with telescoping spines

INFUN Telescoping 3 Ring Binder 4PCS 8.5"x11" Red Pink Blue Green

SKU CH-57RR-6J40V

A set of four lightweight plastic binders with telescoping spines that adjust capacity and foldable covers for flat writing or clipboard use

  • Type4 PCS
  • ColorRed+pink+ Blue+green
  • Telescoping spine adjusts capacity to match paper volume
  • Foldable front cover lies flat for writing or folds back as clipboard
  • Four binders in red pink blue green colour-code subjects instantly
  • Metal three-ring mechanism opens smoothly for quick page changes
  • Durable point-nine-millimetre plastic withstands daily school and office use

Telescoping 3-Ring Binder Set

The INFUN Telescoping 3 Ring Binder comes as a four-piece set in red, pink, blue, and green. Each unit holds 8.5"x11" paper and features a metal three-ring mechanism for secure document retention. The adjustable spine allows capacity to match the current paper load. These binders suit students and office workers who need flexible, colour-coded organisation.

Sustained Load Behaviour

The 0.9mm thick plastic construction resists wear during daily handling and repeated opening cycles. The telescoping spine compresses or expands without forcing the rings out of alignment, keeping pages flat even when the binder is carried in a backpack. The foldable front cover lies flat to create a stable writing surface that does not warp under hand pressure. Metal rings maintain consistent closure tension over long-term use.

Practical Capacity Limits

Spine adjustment ranges from 0.75 inch to 1 inch, defining the maximum paper volume each binder can hold. The fixed 8.5"x11" format prevents use with larger sheets or non-standard sizes. Rings accept only punched pages; loose sheets or unpunched documents cannot be secured directly. The four-colour pack provides exactly four independent binders, no more and no fewer.

Highlights

  • Telescoping spine adjusts capacity to match paper volume
  • Foldable front cover lies flat for writing or folds back as clipboard
  • Four binders in red pink blue green colour-code subjects instantly
  • Metal three-ring mechanism opens smoothly for quick page changes
  • Durable point-nine-millimetre plastic withstands daily school and office use

Specifications

Type4 PCS
BrandINFUN
ColorRed+pink+ Blue+green

Questions about this item

Does the .9 mm plastic stay rigid or get flimsy when the binder sits open on a desk all day?

The .9 mm thick plastic gives a firm writing surface when the foldable front cover lies flat, and the material resists bending during extended use.

What paper size must I already have for the 3-ring mechanism to work?

The rings are spaced for 8.5 x 11 inch sheets, so standard letter-size paper fits directly without punching new holes.

Will the metal rings on this telescoping spine align with my older 1 inch and .75 inch binder dividers?

Yes, the metal 3-ring design matches standard spacing, so existing 1 inch and .75 inch dividers snap in and turn smoothly.

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