list of year 1999 slizer sets:

1061 single disc pack
8500 torch /fire
8501 ski / ice
8502 turbo / city
8503 scuba / sub
8504 jet / judge
8505 amazon / jungle
8506 granite / rock
8507 electro / energy
8508 supplementary discs
8520 millennium / millenia

list of year 2000 slizer sets:

8521 flare
8522 spark
8523 blaster

set database: LEGO 8508 supplementary discs

 image courtesy of bricklink

image courtesy of peeron

set number: 8508

set name: supplementary discs

theme: technic, slizer, throwbots

year: 1999

pieces: 5

price: us$2

minifig: none

supplementary technic set.

come with 5 throwbot disks.

overall design is good.

set database: LEGO 1061 single disk pack

image courtesy of peeron

set number: 1061

set name: single disk pack

theme: technic, slizer, throwbots

year: 1999

pieces: 1

price: us$na

minifig: none

supplementary technic set.

come with a random color throwbot disk.

overall design is good.

set database: LEGO 8500 torch / fire

 image courtesy of bricklink

image courtesy of peeron

set number: 8500

set name: torch / fire

theme: technic, slizer, throwbots

year: 1999

pieces: 32

price: us$6

minifig: none

small technic set.

come with a torch buiding figure.
also included 2 throwbot disks and a throwbot case.

overall design is good.

set database: LEGO 8501 ski / ice

 image courtesy of bricklink

image courtesy of peeron

set number: 8501

set name: ski / ice

theme: technic, slizer, throwbots

year: 1999

pieces: 32

price: us$6

minifig: none

small technic set.

come with a ski buiding figure.
also included 2 throwbot disks and a throwbot case.

overall design is good.

set database: LEGO 8502 turbo / city

 image courtesy of bricklink

image courtesy of peeron

set number: 8502

set name: turbo / city

theme: technic, slizer, throwbots

year: 1999

pieces: 44

price: us$6

minifig: none

small technic set.

come with a turbo buiding figure.
also included 2 throwbot disks and a throwbot case.

overall design is good.

set database: LEGO 8503 scuba / sub

 image courtesy of bricklink

image courtesy of peeron

set number: 8503

set name: scuba / sub

theme: technic, slizer, throwbots

year: 1999

pieces: 42

price: us$6

minifig: none

small technic set.

come with a scuba buiding figure.
also included 2 throwbot disks and a throwbot case.

overall design is good.

set database: LEGO 8504 jet / judge

 image courtesy of bricklink

image courtesy of peeron

set number: 8504

set name: jet / judge

theme: technic, slizer, throwbots

year: 1999

pieces: 42

price: us$6

minifig: none

small technic set.

come with a jet buiding figure.
also included 2 throwbot disks and a throwbot case.

overall design is good.

set database: LEGO 8505 amazon / jungle

 image courtesy of bricklink

 image courtesy of brickset

image courtesy of peeron

set number: 8505

set name: amazon / jungle

theme: technic, slizer, throwbots

year: 1999

pieces: 34

price: us$6

minifig: none

small technic set.

come with an amazon buiding figure.
also included 2 throwbot disks, a katana and a throwbot case.

overall design is good.

set database: LEGO 8506 granite / rock

 image courtesy of bricklink

 image courtesy of brickset

image courtesy of peeron

set number: 8506

set name: granite / rock

theme: technic, slizer, throwbots

year: 1999

pieces: 32

price: us$6

minifig: none

small technic set.

come with a granite buiding figure.
also included 2 throwbot disks.

overall design is good.