What is a plenty of storage book type and a popular pen case that is easy to use?. A product that combines these two good and kids is from Richitrab.
Richitrab Pen Case Book Type Yellow Green A7551-6
Smart Fit Cases - LIHIT-LAB - Brands
Lihit Lab Pen Case Book Type A7551-6สีเหลืองเขียว
KOKUYO Pen Case Pencil Box Tray with Plus Navy F-VBF170-2
Lihit Lab - Pen Case Book-Type - Black (A-7551-24) – Wonder Pens
Lihit Lab. A-7653 Pen Case Flat-type Wide-size — Harajuku Culture Japan - Stationery Products Store
MULTIPLE COMPARTMENTS: internal pockets hold up to 14 standard sized pens; mesh pockets are ideal for holding small sticky notes, clips, erasers, etc
LIHIT LAB Slim Pen/Pencil Pouch, 0.7 × 3.9 × 8.5 Inches, Yellow Green (A7652-6)
A-7551 Zipper Pencil Case
Choose from 4 colors(Orange, Yellow Green, Brown, Black).
LIHIT LAB Pen Case, Yellow Green, 4.7 x 7.9 (A7551-6)
Pen Case Import Japanese products at wholesale prices - SUPER DELIVERY
Lihit Lab. A-7653 Pen Case Flat-type Wide-size — Harajuku Culture Japan - Stationery Products Store