Skip to content

Prepare square onigiri or layered rice sandwiches with KOKUBO’s compact mold and pressing lid. The textured interior and central push-release base help shape and turn out each portion. Rice weight and size vary with filling and packing; hand wash only.

In Stock
  • $1.79 /each
Shipping calculated at checkout.

Usually Ships in 1 Business Day

Pickup available at our Los Angeles showroom.

About this product

Make square onigiri or layered rice sandwiches with KOKUBO’s mold and matching pressing lid.

  • BPA-free polypropylene; made in Japan
  • Mold: approximately 3 inches square
  • Finished rice: approximately 6.5 cm square × 3 cm thick, with about 100 g as a guide
  • Textured interior and central push-release base
  • Hand wash; no microwave, dishwasher or dish dryer

Portion size and weight vary with filling and packing. Keep away from direct heat. Food, wrap and serving accessories are not included.

Product Overview

Make a square onigiri or a layered rice sandwich with KOKUBO Onigiri Days. The translucent mold and matching pressing lid shape one portion, with a textured interior and a central push-release area in the base.

The finished rice portion is approximately 6.5 cm square and 3 cm thick. About 100 g is a guide rather than a fixed serving weight: the result changes with fillings and how firmly the rice is packed.

KOKUBO KK-697 mold being filled beside its matching pressing lid

Layer, then press

Wet the mold before filling. For a rice sandwich, add a thin layer of rice, spread the fillings evenly, and cover with more rice. Fit the matching lid and press. The separate lid lets you control this step without shaping the rice by hand.

Pressing-action illustration

Square pressing format

Use the matching lid to press a single square portion.

Push-release illustration

Push-release base

Remove the lid, invert the mold and press the base gently.

Textured-surface illustration

Textured interior

Wet the textured interior before filling to help rice release.

Square rice portion released from the KK-697 mold onto wrap

Release onto wrap or nori

Remove the lid and invert the mold over a clean surface, wrap or a sheet of nori. Press the center of the base to release the square portion. Use gentle pressure on the release section; forcing it can damage the mold.

Assembled KK-697 square rice mold on a light stone-patterned surface

Portion size and daily care

Allow for a finished portion approximately 6.5 cm square × 3 cm thick, with about 100 g as a guide. Fillings and packing affect the final size and weight.

Hand wash with dish detergent before first use and after use. Avoid abrasives, microwaves, dishwashers and dish dryers. Keep away from direct heat and handle warm rice carefully.

Compare plastic rice-molding shapes and sizes

Compare plastic rice-molding shapes and sizes
Packaged KOKUBO Onigiri Days square rice mold with pressing lid Current product KOKUBO Onigiri Days Square Rice Mold with Pressing LidKK-697 Original 150285 white triangular onigiri rice mold showing two rounded triangular forming pieces Nishiki Small Triangular Rice Mold — Two-Piece Set150285 Sanada L-8582 clear outer frame, embossed insert and matching press for slender sushi rolls Sanada Hosomaki Sushi Roll Mold, 20.8 cmL-8582
Price$1.79 $2.89 $2.19
Product type Square onigiri mold Triangular onigiri rice mold —
Material BPA-free polypropylene Polypropylene (PP) Polypropylene (PP)
Shape Square Two rounded triangular forming pieces One continuous slender roll (hosomaki)
Listed dimensions Mold: approximately 3 in square; finished rice: approximately 6.5 cm square × 3 cm thick 72 × 135 × 50 mm (W × D × H) 208 × 40 × 38 mm overall (approximately 8³⁄₁₆ × 1⁹⁄₁₆ × 1½ in)
Included pieces Mold and pressing lid 2 triangular molding pieces; 1 package One outer frame, one textured insert and matching press; rice, fillings, nori and utensils not included
Country of Origin Japan Japan Japan
Care instructions Hand wash; no microwave, dishwasher or dish dryer. Avoid abrasives and direct heat. hand-wash with mild detergent and a soft sponge, rinse well, and dry all pieces before storage. Clean rice from the recesses without knives or abrasive tools. Keep away from direct heat. Hand wash. Not suitable for dishwashers or dish dryers.
Material temperature rating −20 to 80°C (−4 to 176°F) — Material temperature range: −20 to 100°C (−4 to 212°F).
Color — White —
Height — 50.0 mm —