Weight: Aran
Texture: Stranded ribbon
Fiber: Cotton (50%),
Nylon (50%)
Needles: 5.5mm (9 US) (5 UK)
Gauge: 16 sts / 10cm (4")
Balls: 50g; 69m (75 yds)

Suggested substitutes

Unfortunately, Tartelette is an unusual yarn and we don't know of many close matches. The following suggestions might work in some projects. We've tried our best to match gauge and behavior.
Cha Cha (48% match)
Good news!
The texture of this yarn is also stranded ribbon.
The gauge does not match very well and may not be workable. Try using smaller needles and swatch to match gauge.
The fiber content is different. This yarn contains: Acrylic (47%), Wool (47%) and Nylon (6%)
This yarn comes in 100g / 59m balls. For each ball of the original yarn you will need 1.17 balls of this.