Safety locking system as per international standard and 5 years motor warranty. Mixer is designed is such a way that it wont start until the same is completely locked. The Jar has to be locked to the mixer and the lid jar to be locked to the jar this is a safety feature. Brand: Panasonic Model: MX-AC400(SILVER) 550W Heavy Duty Motor Juice Filter 4Jars Flow breaker jars Samurai Edge blades Warranty: 1 year Brand Panasonic SKU 101034643_NP-1021576259 Model Grinder MX-AC400