1.
masking tape; decorative washi tape
Easily peelable paper tape. Besides its original use in painting, decorative versions (often shortened to マスキングテープ/マステ) are popular in Japan for crafts and journaling.
From English "masking tape," commonly clipped to マステ. In Japan it has become a craft item in its own right, with countless colors and patterns of 和紙-based decorative tape.