The size of the silicone ladle you mentioned is 29cm. Which is the length of the ladle from the scoop to the end of the handle. This ladle size is suitable for serving in medium to large-sized pots or bowls. However, it's always best to consider the capacity of the scoop. Which may vary depending on the brand and design of the ladle.

Here are some additional information on silicone ladles:

Material: Silicone ladles are made of food-grade silicone, which is a type of synthetic polymer. It is flexible, durable, and resistant to high temperatures, making it ideal for use in the kitchen. Silicone is also non-reactive and does not absorb flavors or odors from the food, making it easy to clean and hygienic.
Design: Silicone ladles come in various designs and shapes, but most of them have a scoop with a curved edge and a long handle. Some ladles may have a flat bottom to make it easier to scoop from the bottom of the pot. The handles may be made of silicone or other materials such as stainless steel or wood.
Benefits: Silicone ladles have several benefits over other types of ladles. They are non-stick, so food does not cling to them, making it easier to scoop and serve. They are also heat-resistant, so they can be used in hot liquids without melting or warping. Silicone ladles are also safe for use with non-stick cookware as they will not scratch the surface.
Care: Silicone ladles are generally dishwasher safe, but it's always best to check the manufacturer's instructions before washing. They can also be washed by hand with soap and water. It's important to avoid using abrasive cleaners or scrubbers that can damage the silicone surface. Silicone ladles should be stored in a dry place away from direct sunlight to avoid discoloration or deformation.