Non-drip nipples with 'nubbies' to massage baby's gums are among the products to go on display at the 12th International Baby/Children Products Expo starting today. High-oxygen, low-sodium water for baby-milk formula, electronic musical rocking chairs and multifunction prams costing $4,000 which can be rearranged into a car-seat capsule are also featured. Even the most demanding mum would be hard-pressed not to find what she wants at the three-day fair at the Convention and Exhibition Centre which features products from 200 exhibitors. ''Encourage reproduction, nurture the toddlers' is this year's theme,' said Clara Lau, a spokeswoman for Eugene Group, the baby-supplies company organising the event. 'We hope this kind of expo can give people a happy and warm family feeling and realise the joy a new life can bring.' She expects 200,000 people to attend the expo. One section is manned by representatives from kindergartens and pre-schools, allowing parents to learn more about educational options for their toddlers. Nutritionists, pharmacists and doctors will also be offering advice. Topics include Chinese medicine treatments for children, post-natal care for new mothers, and sex education for children. There will also be performances by kindergarten children and young ballet school students. The expo includes the 16th Hong Kong baby crawling contest which will be staged today. Eighty babies who out-crawled 2000 other contestants in races last month will compete in the finals dressed in animal costumes, racing down a forest-like runway. The entry fee for the event is $20, with proceeds going to the Children's Kidney Trust Fund.