I noticed these on my ski the other day and I can't figure out what they are for. One is a blue and the other is orange. They look like ports of some kind. If someone can help me out that would be great!
couldn't help but notice you're in Okinawa...... I lived there in Awase Meadows (above White Beach) as a kid in '64 and '65. Would love to see what the island looks like now.....